html,
body {
    margin: 0;
    padding: 0;
    background: url('bac1.png');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    -moz-background-size: cover;
    -webkit-background-size: cover;
}

#sidea {
    text-decoration: none;
    display: block;
}

#lists:hover {
    background-color: whitesmoke;
}

#menu {
    text-decoration: none;
    display: block;
}

#menu:hover {
    background-color: whitesmoke;
}

#toptital {
    padding-top: 10%;
}

#title-word {
    text-align: center;
    color: lightcoral;
}

#menu2:hover {
    background-color: honeydew;
}